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http://hdl.handle.net/10261/109297
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dc.contributor.author | Huerta-Díaz, Miguel A. | - |
dc.contributor.author | Tovar-Sánchez, Antonio | - |
dc.contributor.author | Filippelli, Gabriel | - |
dc.contributor.author | Latimer, Jennifer | - |
dc.contributor.author | Sañudo-Wilhelmy, Sergio A. | - |
dc.date.accessioned | 2015-01-13T10:26:21Z | - |
dc.date.available | 2015-01-13T10:26:21Z | - |
dc.date.issued | 2005 | - |
dc.identifier | doi: 10.1016/j.apgeochem.2005.07.009 | - |
dc.identifier | issn: 0883-2927 | - |
dc.identifier.citation | Applied Geochemistry 20(11): 2108-2115 (2005) | - |
dc.identifier.uri | http://hdl.handle.net/10261/109297 | - |
dc.description.abstract | A combined CDB-MAGIC method for the determination of sedimentary Fe-oxyhydroxide-bound P in citrate-dithionite-bicarbonate (CDB) reducing solutions is described. Quantitative removal of P from solution is accomplished through the alkaline precipitation of Mg(OH)2 (brucite) with 10 M NaOH. After subsequent separation by centrifugation and two washings with 10% NH4OH, the precipitate is re-dissolved in 10% HCl. The P concentration in the sample is subsequently measured by the conventional molybdate blue technique using a UV-vis spectrophotometer. The detection limit of the method is 1.2 μM with precision within 1.3-8.1% in the 6-30 μM P concentration range. The results obtained using the CDB-MAGIC protocol were equivalent to those obtained using ICP-AES (r2 = 0.860; p ≤ 0.001; n = 29; with a linear slope of 1.19 ± 0.09). The CDB-MAGIC method provides then a simple, low cost alternative to the current methods based on ICP quantification. © 2005 Elsevier Ltd. All rights reserved. | - |
dc.description.sponsorship | We thank the assistance of Derrick Newkirk and the financial support provided by the Petroleum Research Fund, administered by the American Chemical Society. We express our gratitude to the Mexican Government (Consejo Nacional de Ciencia y Tecnología) for the support of M.A. Huerta-Diaz during his sabbatical leave at the Marine Sciences Research Center, Stony Brook University, Stony Brook, New York 11794-5000, and to the Government of Spain (Secretariat of State for Education and Universities of the Ministry of Education, Culture and Sport) for the postdoctoral fellowship support of A. Tovar-Sanchez. This research was partially supported by NSF OCE 9912333 to S.A. Sañudo-Wilhelmy | - |
dc.publisher | Elsevier | - |
dc.rights | closedAccess | - |
dc.subject | Network protocols | - |
dc.subject | Molybdenum compounds | - |
dc.subject | Spectrophotometers | - |
dc.subject | Concentration (process) | - |
dc.subject | Phosphorus | - |
dc.subject | Separation | - |
dc.subject | Sodium compounds | - |
dc.subject | Magnesium compounds | - |
dc.title | A combined CDB-MAGIC method for the determination of phosphorus associated with sedimentary iron oxyhydroxides | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1016/j.apgeochem.2005.07.009 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.apgeochem.2005.07.009 | - |
dc.date.updated | 2015-01-13T10:26:21Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
item.openairetype | artículo | - |
Aparece en las colecciones: | (IMEDEA) Artículos |
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